Process of treating and coloring wood and product of such process.



-. vTan srarns r rnur ormcn LEIGH S. BAGHE, OF BOUNDB'BQOK, JERSEY.

PROCESS OF TREATING AND COLORING WOGD AND PRODUCT OF SUCH PROCESS.

No Drawing.

To all whom it may concern:

arts for various purposes Without liability of change due to atmosphericor other conditions and the sustaining of a permanent homogeneous colorthroughout the wood or The object of the invention is to produce acolored wood impervious to. moisture and colored through and through.

A further object is to provide a vehicle for thoroughly impregnatingwood or fiber and simultaneously using therewith a color which will holdand bind the impregnating material.

It is not new in the art to stain wood and fiber nor is it new in theart to impregnate to a greater or lesser extent such material with awater-proofing compound or a fireproofing compound. So far as known toapplicant, such impregnation and coloring has acted only to certaindepths upon the material. Foiinstance, in impregnation and coloring ofwood the surface and what might be called a skin of varying thicknessreceives the treatment, but if crossjsawed or out there isnon-uniformity in the coloring conditions as well as in-theimp-regnation. It follows that the articles tobe treated must be treatedin given sizes and the impregnation will be substantially uniform up tocertain depths from the surface on all parts of the article.

It is one of the principal objects of the present invention tothoroughly and completely impregnate the wood or fiber through andthrough and at the same time color it to any desired degree for any useto which it may be desired to utilize it.

' In carrying out the process, wood or similar fibrous material is usedas the base which is to be treated and must be in a substantially drycondition to secure the quickest and best results in treatment. Woodwhich is suitably seasoned or kiln-dried may be readily treated andwill, after subjection to the process hereinafter defined, maintain aconstant condition both as to color and Specification of Letters.Patent.

Patented Nov. 4, 1913.

Application filed July 6, 1911'. Serial No. 637,207.

holding qualities with reference to the impregnating materials.

In carrying out the process, various materials may be used, including acombination of waxes of difi'erent characters, of mineral, vegetable oranimal origin combined with the products derived from volatile oils orproduced by oxidization of hydro-carbons such as rosinsv and mixed withstearic acid or its ethers or glycerins or the commercial form ofstearin, so-called stearic acid. The above materials are used inconjunction with suitable coloring materials preferably those which aresolublein oils, such as one having an indulin' base made soluble withstearin or olein. Very excellent results have been obtained by mixing aquantityof carnauba wax with paraflin, rosin and coloring matter. Theingredients vary somewhat with the treatment to be produced but in anyevent the waxes, parafiin and rosins act as a conveyer for thoroughlyimpregnating the material with the coloring matter and when combined ashereinafter set forth act as a binder with the coloring matter so thatthe article treated has a definite and constant value of impregnatingmaterials and coloring matter. v

In treating wood and fiber various artistic results may be secured byutilizing different coloring materials producing the various tints suchas oak, mahogany, ebony, birch, maple, walnut, andin fact almost any ofthe natural woods and when the wood is once treated it may be readilypolished and finished without staining other than that 1ntroduced at thetime of treatment. Furthermore, the treatment has this great advantage,namely, that it shows any imperfections in the material to be treated.For instance, where wood is of imperfect form and has a streak oftight-grain or dry-rot 'or sap-grain, the color will immediatelydisclose the fact that the wood has not been properly impregnated andlight streaklngs will show. Thus it is'possible to ascertain beforeattempting to use the finished product that it is a erfect piece of woodsu1table for fine wor fine veneer cutting, etc.

In carrying out the process, the followmg ingredients are used:Saturated hydro-carbon of the general series having the formula CnH +2in solid form, such as paraflin having a melting point between 40 and C.and boiling at 120 C. or higher; an am- 'mal, mineral or vegetable waxpreferably it to the bottom gredients are matter, 3% lbs, in some casesparatively small proportion using a to the boiling poin terial to betreated oughly impregnated.

It has tions, will not absorb moisture, evaporate its impregnatingsolution.

that it may be cut in any form,

mixed 1n varying proportions, excellent results having been attained bya mixture as follows: paraifin 100 lbs., carnauba wax 20 lbs, rosin 20lbs., coloring comb weight of stearic acid. They are reduced bysubjecting to heat in a suitable vessel until raised There upon, themais boiled in the mixture until it attains a gravity suflicient tocarry of the caldron. This is the best indication that the material isthorbe'en found that wood treated in this manner shows no appreciablechange of condition under varying atmospheric condiand will not sparently the coloring and impregnating material bind one another in thefiber of the wood and the impregnating material carries the colorcompletely through the fiber so always show the :wood or fiber isgreater than that of the solution.

2. The herein described process of treating wood and fiber whichconsists in subjecting said Wood or fiber to a boiling bath of paraflin,carnauba wax, rosin and coloring matter soluble in the said menstruumwith substantially equal parts by weight of carnauba wax and rosin andan excess of paraflin.

fibrous body impregnated through and through with saturated hydrocarbon,wax, oxidized hydrocarbon and a coloring matter that is soluble in themenstruum composed of said ingredients,

ing ingredients co-acting to cause a uniform saturation and also toprevent flow of the impregnating materials within the said body after ithas been saturated.

4:. A new product consistingl of a solid fibrous body impregnated trough and through with saturated hydrocarbon, wax, oxidized hydrocarbon,stearic acid, and acoloring matter that is soluble in the menstruumcomposed of said saturating ingredients co-acting to cause a uniformsaturation and also to prevent fiow' of the 3. A new product consistingof a solid the said saturat said ingredients, the i lmpregnatingmaterials ing uniform color and complete impregnawithin the said bodyafter it has been sattion. urated. I Obviously, the proportionofingredients 5. A new product consisting of a solid might be varied andsubstitutions might intent of the invention. What I claim as m atent is:

said wood or stearic acid and coloring matter, ing being continued untilthe gravity be fibrous body invention and desire impregnated through andthrough with a compound of saturated hy a coloring matter soluble in themenstruum composed of said ingredients, the specific gravity of theproduct being greater than that of the impregnating medium.

. LEIGH S. BACHE.

' Witnesses:

A. LANG, G120. 'l. SMALLEY.

drocarbon, wax, oxidized hydrocarbon and;

